B31F
Mechanical working or deformation of paper, cardboard or material worked in a
Official title: MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER (making layered products not composed wholly of paper or cardboard B32B)
B31F (Mechanical working or deformation of paper, cardboard or material worked in a) appears on 3,333 US grants and 2,704 published applications in this corpus.
Search patents in B31F- Granted patents
- 3,333
- Published applications
- 2,704
- Assignees
- 1,158
- Inventors
- 4,460
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 33 | 0 |
| 1977 | 24 | 0 |
| 1978 | 36 | 0 |
| 1979 | 18 | 0 |
| 1980 | 23 | 0 |
| 1981 | 49 | 0 |
| 1982 | 43 | 0 |
| 1983 | 32 | 0 |
| 1984 | 37 | 0 |
| 1985 | 44 | 0 |
| 1986 | 45 | 0 |
| 1987 | 32 | 0 |
| 1988 | 32 | 0 |
| 1989 | 29 | 0 |
| 1990 | 29 | 0 |
| 1991 | 29 | 0 |
| 1992 | 58 | 0 |
| 1993 | 59 | 0 |
| 1994 | 67 | 0 |
| 1995 | 63 | 0 |
| 1996 | 109 | 0 |
| 1997 | 141 | 0 |
| 1998 | 114 | 0 |
| 1999 | 100 | 0 |
| 2000 | 109 | 0 |
| 2001 | 72 | 26 |
| 2002 | 67 | 83 |
| 2003 | 74 | 111 |
| 2004 | 64 | 102 |
| 2005 | 34 | 104 |
| 2006 | 42 | 78 |
| 2007 | 40 | 70 |
| 2008 | 34 | 79 |
| 2009 | 25 | 74 |
| 2010 | 66 | 94 |
| 2011 | 45 | 102 |
| 2012 | 59 | 123 |
| 2013 | 88 | 110 |
| 2014 | 76 | 137 |
| 2015 | 112 | 153 |
| 2016 | 99 | 92 |
| 2017 | 71 | 110 |
| 2018 | 95 | 150 |
| 2019 | 102 | 139 |
| 2020 | 115 | 124 |
| 2021 | 120 | 116 |
| 2022 | 117 | 129 |
| 2023 | 105 | 118 |
| 2024 | 104 | 107 |
| 2025 | 91 | 105 |
| 2026 | 61 | 68 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Main groups
Granted patents with any code in the group
Recent patents
- Method for cutting, creasing and/ or embossing a cardboard and cardboard processing machine6 Oct 2026US 12,752,507 B2Bobst Mex SA
- Method for operating a system having a corrugator and a printing machine, and system6 Oct 2026US 12,752,550 B2BHS Corrugated Maschinen-und Anlagenbau GmbH
- Multi-layer absorbent cores and methods of manufacture22 Sep 2026US 12,740,898 B2Kimberly-Clark Worldwide, Inc.
- Plant and method for manufacturing corrugated board with an order change detector8 Sep 2026US 12,728,615 B2Fosber S.p.A.
- Constant strain PEX expansion tool head1 Sep 2026US 12,722,338 B2Zurn Water, LLC
- Method for operating a corrugator, corrugator, computer programme product, and paper roll8 Oct 2026US 2026/0307357 A1BHS Corrugated Maschinen-und Anlagenbau GmbH
- Large format synchronized embossing process24 Sep 2026US 2026/0286714 A1Kronoplus Limited
- Unidirectional wood fiber paper and preparation method therefor, unidirectional wood fiber paper prepreg and preparation method therefor, and wood fiber paper-reinforced composite material17 Sep 2026US 2026/0275640 A1Freshape SA
- Discrete cells and emboss elements17 Sep 2026US 2026/0275645 A1The Procter & Gamble Company
- Embossed Tissue Products With Three-Dimensional Structure17 Sep 2026US 2026/0275648 A1Kimberly-Clark Worldwide, Inc.
Most cited
By later US patents
- Article forming system696US 4,773,182 AHighland Supply Corporation · 1988
- Method for wrapping an object with a material having pressure sensitive adhesive thereon626US 5,111,638 AHighland Supply Corporation · 1992
- Wrapping a floral grouping with sheets having adhesive or cohesive material applied thereto507US 5,181,364 AHighland Supply Corporation · 1993
- Method of wrapping a floral grouping with a wrapper having a central opening394US 5,205,108 AHighland Supply Corporation · 1993
- Method for wrapping flower pots using a self adhering wrapping material367US 5,199,242 AHighland Supply Corporation · 1993